CVE-2026-28793
8.4 · HIGHOverview
CVE-2026-28793 is a high-severity vulnerability affecting ssw tinacms\/cli. It was published on March 12, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Tina is a headless content management system. Prior to 2.1.8, the TinaCMS CLI development server exposes media endpoints that are vulnerable to path traversal, allowing attackers to read and write arbitrary files on the filesystem outside the intended media directory. When running tinacms dev, the CLI starts a local HTTP server (default port 4001) exposing endpoints such as /media/list/*, /media/upload/*, and /media/*. These endpoints process user-controlled path segments using decodeURI() and path.join() without validating that the resolved path remains within the configured media directory. This vulnerability is fixed in 2.1.8.
Remediation
Check the references section for vendor advisories and patches from ssw. Update tinacms\/cli to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ssw | tinacms\/cli | >= 0, < 2.1.8 | Affected |
Frequently Asked Questions
What is CVE-2026-28793?
CVE-2026-28793 is a high-severity vulnerability affecting ssw tinacms\/cli. It was published on March 12, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).
How severe is CVE-2026-28793?
This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-28793?
Check the references section for vendor advisories and patches from ssw. Update tinacms\/cli to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-28793?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-28793 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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